lantiq: more vdsl related cleanups

* atm module needs to be loaded before linux-atm
* use absolute firmware paths
* extended validation
* add a script for mounting an optional firmware partition

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 40460

target/linux/lantiq/base-files/etc/init.d/dsl_fs

@@ -0,0 +1,13 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2014 OpenWrt.org
+
+. /lib/functions.sh
+
+START=30
+start() {
+	MTD=$(find_mtd_index dsl_fw)
+	[ "$MTD" -gt 0 ] && {
+		mkdir -p /lib/firmware/dsl/
+		mount -t jffs2 /dev/mtdblock$MTD /lib/firmware/dsl/
+	}
+}